plural of check key

Third-person singular simple present indicative form of check up

present participle of check up

plural of signal check

(rail transport) An instance where a train must stop at a red signal, or slow down before passing a signal displaying a yellow aspect.

plural of check sheet

A document used to collect data in real time at the location where the data is generated, used in quality control processes.

A visit made by law enforcement to a person's residence in response to a request that they check in on a person and their well-being.

Synonym of welfare check

(slang) An impromptu attempt to ascertain mood, opinions, or attributes.